Pelvis and leg pain

Ok so I’m 14 and have a vitamin D deficiency, which I think might be the cause of what I’m about to explain, I’ve been getting a constant pain in my back, pelvis and legs for about almost a year now. The lower back pain usually starts after the legs and sometimes I get tailbone pain too. I was concerned because I’ve just recently explored into the wonderful world of masturbation. Do you think that it could possibly have anyone thing too do with that (I’m a virgin) and the pain isn’t present while actually doing it. Should I talk to my doc??